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gabbro

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gabbro

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Olivine gabbro through a polarized microscope. Gabbro is a coarse-grained igneous rock.
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Gabbro through a polarized microscope. Gabbro is an igneous rock which forms in major plutonic intrusions.

Mafic (consisting primarily of dark-coloured crystals) igneous rock formed deep in the Earth's crust. It contains pyroxene and calcium-rich feldspar, and may contain small amounts of olivine and amphibole. Its coarse crystals of dull minerals give it a speckled appearance.

Gabbro is the plutonic version of basalt (that is, derived from magma that has solidified below the Earth's surface), and forms in large, slow-cooling intrusions.
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Eddie Harkin from the society said that the highly polished axe head measuring approximately five inches by two inches and fashioned from a type of stone known as gabbro, was found in a ploughed field close to the southern shore of Lough Swilly.
8,000 year-old axe head discovered in Ireland by Asian News International
Based on these findings, Volta says it will soon begin detailed geochemical auger drilling between the Dienemera and Gongondy deposits and will also continue to explore the western side of the post-mineralized gabbro at the Gongondy deposit with further RC drilling.
Volta Resources jumps after resource estimate by Buzz on the Boards / Stockhouse
He also announced that Qatar is interested in importing Gabbro stone from Iran.
Qatar Sets to Make Investment in Iran by Moj News Agency (Tehran, Iran)
 
 
 
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